DS1302 driver for powerpc
Hi, Thanks for your help. But I also do not have this driver for 83xx. (as my linux is comes from Montavista) Could you mind providing me a link / or a source of such driver for me to reference ? Thanks. Best regards, Lo Chun Chung -Original Message- From: Matt Porter [mailto:[EMAIL PROTECTED] Sent: Wednesday, 30 August, 2006 9:55 PM To: Chun Chung Lo Cc: linuxppc-embedded at ozlabs.org Subject: Re: DS1302 driver for powerpc On Wed, Aug 30, 2006 at 07:54:16PM +0800, Chun Chung Lo wrote: Hi all, I am now doing a STB project and the development board uses a DS1302 (trickle charge timekeeping chip) as a RTC. Our board is a IBM PPC405EP with a linux kernel 2.4.20 running on it. And the DS1302 is controlled by 2 GPIO pins instead of I2C. I would like to ask are there any porting of DS1302 support under ppc architecture? (I can only find DS1302 is supported under cris architecture.) There doesn't seem to be any DS1302 support for ppc available. However, even if there were a platform with DS1302 support you'd be in the same boat as the low-level support for cris. Support for DS1302 has a glue layer that's board-specific based on what GPIO pins are used to drive it. So if you had this driver for another PPC system like 83xx you'd still have no better starting point than the cris ds1302 driver glue since the GPIO mechanism/connection is different. Porting the board-specific glue from arch/cris/drivers/ds1302.c to 4xx GPIO is trivial to do though. -Matt This message (including any attachments) is for the named addressee(s)'s use only. It may contain sensitive, confidential, private proprietary or legally privileged information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. Any use, disclosure, copying, or distribution of this message and/or any attachments is strictly prohibited.
DS1302 driver for powerpc
Hi, That's good. I also started to work on it. Thanks for your quick reply. Best regards, Lo Chun Chung -Original Message- From: Matt Porter [mailto:[EMAIL PROTECTED] Sent: Thursday, 31 August, 2006 9:12 AM To: Chun Chung Lo Cc: linuxppc-embedded at ozlabs.org Subject: Re: DS1302 driver for powerpc On Thu, Aug 31, 2006 at 08:51:22AM +0800, Chun Chung Lo wrote: Hi, Thanks for your help. But I also do not have this driver for 83xx. (as my linux is comes from Montavista) The 83xx reference was a hypothetical. There is no 83xx driver for the ds1302. Could you mind providing me a link / or a source of such driver for me to reference ? My advice is to port the cris DS1302 driver to your board-specific GPIO configuration. -Matt This message (including any attachments) is for the named addressee(s)'s use only. It may contain sensitive, confidential, private proprietary or legally privileged information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. Any use, disclosure, copying, or distribution of this message and/or any attachments is strictly prohibited.
Re: DS1302 driver for powerpc
On Wed, Aug 30, 2006 at 07:54:16PM +0800, Chun Chung Lo wrote: Hi all, I am now doing a STB project and the development board uses a DS1302 (trickle charge timekeeping chip) as a RTC. Our board is a IBM PPC405EP with a linux kernel 2.4.20 running on it. And the DS1302 is controlled by 2 GPIO pins instead of I2C. I would like to ask are there any porting of DS1302 support under ppc architecture? (I can only find DS1302 is supported under cris architecture.) There doesn't seem to be any DS1302 support for ppc available. However, even if there were a platform with DS1302 support you'd be in the same boat as the low-level support for cris. Support for DS1302 has a glue layer that's board-specific based on what GPIO pins are used to drive it. So if you had this driver for another PPC system like 83xx you'd still have no better starting point than the cris ds1302 driver glue since the GPIO mechanism/connection is different. Porting the board-specific glue from arch/cris/drivers/ds1302.c to 4xx GPIO is trivial to do though. -Matt ___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
Re: DS1302 driver for powerpc
On Thu, Aug 31, 2006 at 08:51:22AM +0800, Chun Chung Lo wrote: Hi, Thanks for your help. But I also do not have this driver for 83xx. (as my linux is comes from Montavista) The 83xx reference was a hypothetical. There is no 83xx driver for the ds1302. Could you mind providing me a link / or a source of such driver for me to reference ? My advice is to port the cris DS1302 driver to your board-specific GPIO configuration. -Matt ___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
RE: DS1302 driver for powerpc
Hi, That's good. I also started to work on it. Thanks for your quick reply. Best regards, Lo Chun Chung -Original Message- From: Matt Porter [mailto:[EMAIL PROTECTED] Sent: Thursday, 31 August, 2006 9:12 AM To: Chun Chung Lo Cc: linuxppc-embedded@ozlabs.org Subject: Re: DS1302 driver for powerpc On Thu, Aug 31, 2006 at 08:51:22AM +0800, Chun Chung Lo wrote: Hi, Thanks for your help. But I also do not have this driver for 83xx. (as my linux is comes from Montavista) The 83xx reference was a hypothetical. There is no 83xx driver for the ds1302. Could you mind providing me a link / or a source of such driver for me to reference ? My advice is to port the cris DS1302 driver to your board-specific GPIO configuration. -Matt This message (including any attachments) is for the named addressee(s)'s use only. It may contain sensitive, confidential, private proprietary or legally privileged information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. Any use, disclosure, copying, or distribution of this message and/or any attachments is strictly prohibited. ___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
DS1302 driver for powerpc
Hi all, I am now doing a STB project and the development board uses a DS1302 (trickle charge timekeeping chip) as a RTC. Our board is a IBM PPC405EP with a linux kernel 2.4.20 running on it. And the DS1302 is controlled by 2 GPIO pins instead of I2C. I would like to ask are there any porting of DS1302 support under ppc architecture? (I can only find DS1302 is supported under cris architecture.) Thanks all. Best regards, Lo Chun Chung This message (including any attachments) is for the named addressee(s)'s use only. It may contain sensitive, confidential, private proprietary or legally privileged information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. Any use, disclosure, copying, or distribution of this message and/or any attachments is strictly prohibited.
DS1302 driver for powerpc
On Wed, Aug 30, 2006 at 07:54:16PM +0800, Chun Chung Lo wrote: Hi all, I am now doing a STB project and the development board uses a DS1302 (trickle charge timekeeping chip) as a RTC. Our board is a IBM PPC405EP with a linux kernel 2.4.20 running on it. And the DS1302 is controlled by 2 GPIO pins instead of I2C. I would like to ask are there any porting of DS1302 support under ppc architecture? (I can only find DS1302 is supported under cris architecture.) There doesn't seem to be any DS1302 support for ppc available. However, even if there were a platform with DS1302 support you'd be in the same boat as the low-level support for cris. Support for DS1302 has a glue layer that's board-specific based on what GPIO pins are used to drive it. So if you had this driver for another PPC system like 83xx you'd still have no better starting point than the cris ds1302 driver glue since the GPIO mechanism/connection is different. Porting the board-specific glue from arch/cris/drivers/ds1302.c to 4xx GPIO is trivial to do though. -Matt
DS1302 driver for powerpc
On Thu, Aug 31, 2006 at 08:51:22AM +0800, Chun Chung Lo wrote: Hi, Thanks for your help. But I also do not have this driver for 83xx. (as my linux is comes from Montavista) The 83xx reference was a hypothetical. There is no 83xx driver for the ds1302. Could you mind providing me a link / or a source of such driver for me to reference ? My advice is to port the cris DS1302 driver to your board-specific GPIO configuration. -Matt
